Subsoiler plow attachment.



c J JENSEN. SUBSOILER PLOW ATTACHMENT.

APPLICATION FILED JUNE 7, 1912.

Patented July 14, 1914.

2 SHEETS-SHEET 1.

THE NORRIS PETERS C0,. PHOTO-LITHO WASHINGTON, D C:

G. J. JENSEN.

SUBSOILER PLOW ATTACHMENT APPLICATION FILED JUNE 7, 19121;

Patented July 14, 1914.

2 SHBETs SHBBT 2.

THE NORRIS PETERS CQ, PHOTO-LITIIQ. W'ASHINGTON, D: C,

CHRISTIAN J. JENSEN, OF PRESTON, IDAHO.

SUBSOILER PLOW ATTACHMENT.

Application filed .Tune 7, 1912.

Specification of Letters Patent.

Serial No. 702,368.

To all whom it may concern Be it known that I, CHRISTIAN J. JENSEN, a citizen of the United States, and a resident of Preston, in the county of Oneida and State of Idaho, have invented certain new and useful Improvements in Subsoiler Attachments for Plows.

This invention relates to improvement in subsoiler attachments for plows and more especially to attachments which may be removed from one plow and applied to another.

The object of the invention is to provide an attachment of this character which may be readily attached to any plow and which is provided with means for actuating it either from above or behind the plow thus adapting the device for use on either riding or walking plows.

With these and other objects in view, the invention consists of certain novel features.

of construction, and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 represents a perspective view of a plow equipped with this improved attachment and taken from the landside of the plow showing the attachment when raised or in inoperative position; Fig. 2 is a Similar view showing the subsoiler in depressed operative position; Fig. 3 is a plan view of the plow; Fig. 4 is a side elevation of this improved attachment detached.

In the embodiment illustrated a plow l of ordinary construction is shown having a brace 2 connecting the landside and mold board thereof and provided with the usual beam 3 having its rear end downturned and secured to the mold board by bolts in the usual manner.

This improved attachment comprises a semicircular beam 5 preferably composed of metal and having a clevis 6 at its front end for adjustable engagement with the rear end of the beam 3 and at a suitable point preferably about midway of the height of the curved portion thereof. The clevis 6 is here shown provided with four bolt holes 7 to provide for its adjustable connection but it is obvious that any desired number may be employed. The free end of the beam 5 has a shovel 8 detachably secured thereto in any suitable manner and this shovel may be of any desired shape, the one here shown being substantially heart shaped.

The operating mechanism for this sub- Patented July 14, 1914.

soiler comprises a bell crank lever 9 fulcrumed to the beam 5 near the front or clevis end of said beam'and this lever is held yieldably in position by a coiled spring 10 connected at one end with said lever and at its other end to a lug or eye 11 which projects from the beam 5 as clearly shown in the drawings. The bell crank lever 9 is preferably bifurcated to straddle the beam 5 and to the front ends of the arms 9 thereof which ar arranged on opposite sides of said beam 5, are pivotally connected links 12 and 13, the free ends of said links being offset inwardly as shown clearly in Fig. 3. A curved hook 1a is preferably mounted on the beam 5 at the rear of the lever 9, the end which engages said beam being preferably bifurcated as shown in Fig. 2,'to receive the beam between the forks thereof and is adjustably secured to the beam by means of a bolt 15 which passes through longitudinally extending slots as 16 in said hook end and through an aperture in the beam 5 whereby said hook is adjustably connected with said beam, the free end of the hook 14 adjacent the nose or catch 17 thereof has a longitudinal slot 18 with which the bolt 19 which connects the links 12 and 13 with said hook is adjustably engaged. By means of these slots it will be obvious that the operating mechanism may be adjusted to adapt the subsoiler to extend into the ground a greater or less depth as may be desired. The hook 17 is designed to engage the cross brace 2 which connects the landside and mold board of the plow when the subsoiler is in operative position as shown clearly in Fig. 2 and which holds said attachment in this position against the tension of the spring 10. When the hook is disengaged from the brace 2 the spring 10 will elevate the beam 5 and lift the plow point or shovel 8 out of the ground, as

ground. To place the subsoiler into the ground the lever is also moved rearwardly until the bolt which connects the links 12 and 13 with the lever 9 engages the lower edge of the beam 5. Thus it will be observed that the first backward movement of the lever 9 will disengage the hooks 17 from the brace 2 and a continuous movement thereof will cause the bolt to come into contact with the beam as above'described. and thus force the shovel or subsoiler 8 into the earth and after the subsoiler has been forced into the ground the lever 9 is released and the spring 10 thereof will cause the hook 17 to engage the-bar 2 andthus hold the parts in operative position as shown inFig. 2. v

While the-device is shown applied ;to a walking plow it-isobvious that it may be used equally well on asulky orq-a ridingplow and it may be used for a-variety of purposes which it is not thought necessary:

to enumerate.

,I claimas my invention: a .1 \Asubsoiler attachment'for plows comprising a curved beam havingra shovelat one endand attaching means at the other, a hook for engaging, a .portionof a plow for locking the attachment in operative posi-- tion, and means for releasing said hook.

.2. A, subsoiler attachment for plows ,com-

prising 1abeam having a shovel mounted thereon, a hook pivotally mounted on said beam for engaging a portion of a; plow to hold the attachment in operative position, a-

Gopiet.otthisipatent-may he obtained forfive cents eachyby addressingthe Commissioner :01. Patent, v

lever and hook and resilient mean for connecting said lever to said beam.

41. A subsoiler attachment for plows comrisin a semi-circular beam havin a shovel atone end anda clevis at the other, abell crank leverfulcrumed on sald beam near 1ts clevi end, resilient means in advance of the lever andconnected with the beam and lever,

a hook pivotally and adjustably mounted on i said beam at the rear of said lever for engaging a portion of a plow for holding said attachment in operative position, and links adjustably connectingsaid hook and lever.

Respectfully-submitted this 9th day of March, 1912.

c. J. JENSEN.

Witnesses:

E. WV. SWANN, A. L. cENOKSEN.

'zwashington, 3D, ,0. 

